A heat pump works much the same way an air conditioning unit works with a few differences. In the cooling mode it transfers heat outside from the inside and in the heating mode it transfer heat from the outside to the inside*.
Union, Maine. Union is a town in Knox County, Maine, United States. The population was 2,259 at the 2010 census. It is home to the Matthews Museum of Maine Heritage and annual Union Fair.
Union City station. Union City station is a Bay Area Rapid Transit station located in downtown Union City near the Decoto district. Service at this station began on September 11, 1972. The station sits near Decoto Road east of Alvarado-Niles Road, directly behind James Logan High School's campus.